"""
顺序排序、居中对齐输出以下字符串
"""
poem = [
    "去年今日此门中，",
    "人面桃花相映红。",
    "人面不知何处去，",
    "桃花依旧笑春风。"
]

for each in poem:
    print("|%s|" % each.center(10," "))